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Echo: linux: security update to 6.1.176-1

high Tenable Self-Hosted Container Security Plugin ID 465230

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: can: raw: fix ro->uniq use-after-free
 in raw_rcv() raw_release() unregisters raw CAN receive filters via can_rx_unregister(), but receiver
 deletion is deferred with call_rcu(). This leaves a window where raw_rcv() may still be running in an RCU
 read-side critical section after raw_release() frees ro->uniq, leading to a use-after-free of the percpu
 uniq storage. Move free_percpu(ro->uniq) out of raw_release() and into a raw-specific socket destructor.
 can_rx_unregister() takes an extra reference to the socket and only drops it from the RCU callback, so
 freeing uniq from sk_destruct ensures the percpu area is not released until the relevant callbacks have
 drained. [mkl: applied manually] (CVE-2026-31532)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-31532

Plugin Details

Severity: High

ID: 465230

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.86

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-31532

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/1/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-31532